SPECIAL REPAIR OF BUILDING NO NS-42 IN MOORA AREA AT MO (MB) GHATKOPAR UNDER CWE (SUBS) MUMBAI

Sch 'A' (B/R Portion) Visual inspection and photography performing a visual survey of the building and recording/maping on drawing to assess extent of spelled concrete, cracked concrete, honey combing, reinfocement corrosion, delaminated concrete etc, taking photographs and videos to collect evidence of damage to structure.

Ultrasonic pulse velocity test for RCC structure in accordance with IS:516 Part-5:2018 SECTION 1 by portable ultrasonic non destructive digital test equipment including chipping out plaster at strategic locations.

Rebound hammer test :- Rebound hammer test in accordance with IS:516 Part-5:2018 SECTION 4 by portable rebound hammer equipment at strategic locations.

Core test :- Core cutting and compression test for RCC structure in accordance with IS:516 on RCC members. 70 mm core cutting in reinforcement concrete, core filling by speialized epoxy material/micro concrete with bond coat at strategic locations.

Reinforcement mapping :- Reinforcement mapping test on RCC members to assess covers, spacing of bars including approximate diameter at strategic locations.

Chemical test for RCC structure in accordance with IS 456 2000 using ready made kits and reagents. Sample collected will be from half cell/carbonation powder. (i) Determination of PH value. (ii) Determination of water soluble sulphates. (iii) Determination of water soluble chlorides contents at strategic locations.

Half cell potential test for RCC structure in accordance with IS:516 Part-5:2018 SECTION 2 half cell potential to assess the probability of corrosion of reinforcement at strategic locations.

Carbonation test for RCC structure in accordance with IS:516 Part-5:2018 SECTION 3 corbonation test to measure extent of carbonation from the concrete surface at strategic locations.

To check & confirm present status of structure on basis on NDT results & visual inspection.

To provide recommendation for structrue repairs and technical specification alongwith arch plan as per discussion with user incl Preparing billing of quantities for the str repair etc all as specified and directed.